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input-settings-x11: check properties for correctness before changing them

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Before submitting a new scroll mode, click method or sendevents mode check if
the value is supported by the device. This avoids BadValue errors when setting
two-finger scrolling on single-finger touchpad devices since we can't easily
handle BadValue (see 9747277b)

https://bugzilla.gnome.org/show_bug.cgi?id=750816

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2015-06-11 11:49:24 +10:00 committed by Michael Catanzaro
parent 3fb1135cb7
commit 20b6004507
1 changed files with 42 additions and 7 deletions
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37
src/backends/x11/meta-input-settings-x11.c
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@ -100,6 +100,12 @@ meta_input_settings_x11_set_send_events (MetaInputSettings *settings,
GDesktopDeviceSendEvents mode)
{
guchar values[2] = { 0 }; /* disabled, disabled-on-external-mouse */
guchar *available;
available = get_property (device, "libinput Send Events Modes Available",
XA_INTEGER, 8, 2);
if (!available)
return;
switch (mode)
{
@ -113,8 +119,14 @@ meta_input_settings_x11_set_send_events (MetaInputSettings *settings,
break;
}
if ((values[0] && !available[0]) || (values[1] && !available[1]))
g_warning ("Device '%s' does not support sendevents mode %d\n",
clutter_input_device_get_device_name (device), mode);
else
change_property (device, "libinput Send Events Mode Enabled",
XA_INTEGER, 8, &values, 2);
meta_XFree (available);
}
static void
@ -186,6 +198,12 @@ meta_input_settings_x11_set_scroll_method (MetaInputSettings *setting
GDesktopTouchpadScrollMethod mode)
{
guchar values[3] = { 0 }; /* 2fg, edge, button. The last value is unused */
guchar *available;
available = get_property (device, "libinput Scroll Methods Available",
XA_INTEGER, 8, 3);
if (!available)
return;
switch (mode)
{
@ -201,8 +219,14 @@ meta_input_settings_x11_set_scroll_method (MetaInputSettings *setting
g_assert_not_reached ();
}
if ((values[0] && !available[0]) || (values[1] && !available[1]))
g_warning ("Device '%s' does not support scroll mode %d\n",
clutter_input_device_get_device_name (device), mode);
else
change_property (device, "libinput Scroll Method Enabled",
XA_INTEGER, 8, &values, 3);
meta_XFree (available);
}
static void
@ -220,7 +244,12 @@ meta_input_settings_x11_set_click_method (MetaInputSettings *settings,
GDesktopTouchpadClickMethod mode)
{
guchar values[2] = { 0 }; /* buttonareas, clickfinger */
guchar *defaults;
guchar *defaults, *available;
available = get_property (device, "libinput Click Methods Available",
XA_INTEGER, 8, 2);
if (!available)
return;
switch (mode)
{
@ -245,8 +274,14 @@ meta_input_settings_x11_set_click_method (MetaInputSettings *settings,
return;
}
if ((values[0] && !available[0]) || (values[1] && !available[1]))
g_warning ("Device '%s' does not support click method %d\n",
clutter_input_device_get_device_name (device), mode);
else
change_property (device, "libinput Click Method Enabled",
XA_INTEGER, 8, &values, 2);
meta_XFree(available);
}
static void